... 2006 ; Chen and Luo 2013 ); and the Early Cretaceous eutherian Eomaia scansoria (Ji et al. 2002 ). We also included two unpublished specimens from the Early Cretaceous: the eutriconodontan Liaoconodon sp. indet. and symmetrodontan Zhangheotherium sp. indet. Among the ten Mesozoic taxa...

... ( Zhangheotherium ) from Liaoning Province, offer a close look at common ancestors of modern mammals. The important debates on the geological age of the Jehol biota (Late Jurassic or Early Cretaceous) are presented in several chapters in this book. Ji et al. (Chapter 19) present evidence to suggest a Late...